Sorry For The Notch Filter Controversy I did gather allot of notes on things such as clock shifting to avoid noise in the 60 Hz range and a modification of the Soft Rock 40 for an i.f. board idea and a few other notes of concern I will keep to look at. I'll learn by what you all are doing and what things concern you in your designs. I learned allot today and have thought about it most all day.
The idea of shifting the clock frequency would not be a problem for vfo driven models but would have to be made possible in an i.f. board model and so I think the simple thing to do is either a panel mount variable capacitor to the crystal or a Varicap diode to a potentiometer to shift the center frequency for when you need to do that. Thus one can shift the signal out of the 60 Hz hum, so I will keep that in mind. I also noticed you can get a really big spike right near the center. But my receiver I use doesn't seem to suffer that much unless I am on medium wave and then there is allot of 60 and 120 Hz hum there. I use triple conversion on my main receiver. I also want to learn more about the pll circuit in the email today. Anyways, I am learning things here and am no software designer. Just a radio technician since 1976 and still learning that too. You can never really keep up with all of electronics theres always something new. Dan _____________________________________________________________________ Call Anyone, Anytime, Anywhere in the World - FREE! Free Internet calling from NetZero Voice Visit http://www.netzerovoice.com today! Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
